The 3:1 shrink ratio dual wall heat shrink tube is designed for electrical insulation and moisture protection, offering a snug, conforming fit. It is ideal for wire splices, automotive harnessing, and marine applications, providing enhanced sealing performance against water, dust, and chemicals.
The polyolefin outer shell ensures resistance to abrasion, chemicals, and UV radiation, while the inner adhesive layer prevents moisture ingress, ensuring reliable electrical connections.
| Property | Test method | Standard | Typical Performance |
|---|---|---|---|
| Tensile strength(Mpa) | ASTM D2671 | ≥ 10.4 | 13.78 |
| Elongation(%) | ASTM D2671 | ≥ 200 | 460.62 |
| Tensile strength after aging(Mpa) | UL224 158 ℃X168hr | ≥ 7.3 | 11.34 |
| Elongation after aging (%) | UL224 158 ℃X168hr | ≥ 100 | 398.28 |
| Flammability | ASTM D 2671B | Pass | Pass |
| Dielectric strength(kV/mm) | IEC 60243 | ≥ 15 | 17.36 |
| Volume resistivity( Ω.cm) | IEC 60093 | ≥ 1X1014 | 2.24 X1014 |
| Adhesive | |||
| Property | Test method | Standard | |
| Water Absorption | ASTM D570 | ＜ 0.2% | |
| Softening Point( ℃) | ASTM E28 | 95±5 | |
| Strength of pearing (PE) | ASTM D 1000 | 120N/25mm | |
| Strength of pearing (AL) | ASTM D 1000 | 80N/25mm | |
| Size | Expanded | After Recovery | Standard Package | |||
|---|---|---|---|---|---|---|
| Inch | mm | Inner Diameter Min(mm) | Inner Diameter Max(mm) | Total Wall Thickness (mm) | Adhesive Thickness (mm) | Spool Length M/spool |
| 3/32 | 2.4 | 2.4 | 0.8 | 0.80±0.3 | 0.40±0.20 | 200 |
| 1/8 | 3.2 | 3.2 | 1 | 0.90±0.30 | 0.40±0.20 | 200 |
| 3/16 | 4.8 | 4.8 | 1.6 | 1.05±0.30 | 0.40±0.20 | 100 |
| 1 /4 | 6.4 | 6.4 | 2.2 | 1.25±0.30 | 0.45±0.20 | 100 |
| 5 /16 | 7.9 | 7.9 | 2.7 | 1.35±0.30 | 0.50±0.20 | 100 |
| 3/8 | 9.5 | 9.5 | 3.2 | 1.45±0.30 | 0.50±0.20 | 50 |
| 1/2 | 12.7 | 12.7 | 4.2 | 1.65±0.30 | 0.50±0.20 | 1.22 OR 25M/Roll |
| 5/8 | 15 | 15 | 5.2 | 1.80±0.30 | 0.55±0.30 | 1.22 OR 25M/Roll |
| 3/4 | 19.1 | 19.1 | 6.3 | 1.95±0.30 | 0.60±0.30 | 1.22 OR 25M/Roll |
| 1 | 25.4 | 25.4 | 8.5 | 2.00±0.40 | 0.60±0.30 | 1.22 OR 25M/Roll |
| 1-1/4 | 30 | 30 | 10.2 | 2.15±0.40 | 0.65±0.30 | 1.22 OR 25M/Roll |
| 1-1/2 | 39 | 39 | 13.5 | 2.45±0.40 | 0.60±0.30 | 1.22 OR 25M/Roll |
| 2 | 50 | 50 | 17 | 2.75±0.40 | 0.75±0.30 | 1.22 OR 25M/Roll |
| 5/2 | 64 | 64 | 21 | 3.05±0.40 | 0.80±0.30 | 1.22 OR 25M/Roll |
| 3 | 75 | 75 | 25 | 3.05±0.40 | 1.05±0.40 | 1.22 OR 25M/Roll |
| 7/2 | 90 | 90 | 30 | 3.10±0.50 | 1.05±0.40 | 1.22 OR 25M/Roll |
| 4 | 100 | 100 | 34 | 3.10±0.50 | 1.05±0.40 | 1.22 OR 25M/Roll |
| 5 | 125 | 125 | 42 | 3.10±0.50 | 1.10±0.40 | 1.22 OR 25M/Roll |
The Dual Wall Adhesive-Lined Polyolefin Heat Shrink Tube (Ratio 3:1) provides reliable insulation and moisture protection for wire splices and connectors in harsh environments. Its tough polyolefin outer layer resists abrasion, chemicals, and UV, while the adhesive inner lining forms a watertight seal. Ideal for automotive and marine use, the dual wall adhesive-lined polyolefin heat shrink tube ensures long-lasting performance and protection.
This heat shrink tubing is suitable for electrical applications, including automotive and marine wire harnesses, wire splices, breakouts, and connector-to-cable transitions.
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India.
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